/*
 SincSamplesFilter.java
 Copyright (C) 2003 Gerardo Horvilleur Martinez

 This program is free software; you can redistribute it and/or
 modify it under the terms of the GNU General Public License
 as published by the Free Software Foundation; either version 2
 of the License, or (at your option) any later version.

 This program is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.

 You should have received a copy of the GNU General Public License
 along with this program; if not, write to the Free Software
 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
*/

package org.jrman.util;

public class SincSamplesFilter extends SamplesFilter {

    protected float filterFunc(float x, float y, float xWidth, float yWidth) {
        float s;
        float t;
        if (x > -0.001f && x < 0.001f)
            s = 1f;
        else
            s = (float) Math.sin(x) / x;
        if (y > -0.001f && y < 0.001f)
            t = 1f;
        else
            t = (float) Math.sin(y) / y;
       return s * t;
    }

}
